• 한국국방경영분석학회지
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• 제27권1호
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• pp.1-9
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• 2001

In this paper, "a conceptual model of Reconnaissance-Strike-Logistics Complex(RSLC) in future warfare" is proposed. Basic idea of the RSLC model is to combine logistics and the pre-existing Reconnaissance-Strike Complex(RSC) through a C4 network system. That is, the RSLC model consists of reconnaissance, strike, logistics, and C4 network systems. The C4 network system creates new combat power by integrating all the other systems. The RSLC model generates three conceptual complex circles; the RSC, the SLC(Strke-Logistics Complex), and the RSLC circles. The RSC circles describes direct combat behaviors in the battlefield. On the other hand, the SLC circle indicates combat sustainment capabilities. The RSLC circle including the RSC and the SLC circles, can present a more complete combat process. There are two key advantages of the RSLC model. First of all, logistics is considered one of key combat components to form IDA(Information-Decision-Action) cycle for combat decision-making process more completely. Secondly, the capabilities of battlefield awareness which reconnaissance and war-net systems provide, can be applied not only to the strike system in the RSC circle, but also to the logistics system in the SLC circle. Thus, the RSLC model can maximize combat synergy effects by integrating the RSC and the SLC. With a similar logic, this paper develops "A Revised System of Systems with Logistics (RSSL)" which combines "A New system of Systems" and logistics. These tow models proposed here help explain several issues such as logistics environment in future warfare, MOE(Measure of Effectiveness( on logistics performance, and COA(Course of Actions) for decreasing mass and increasing velocity. In particular, velocity in logistics is emphasized.

• 한국정밀공학회지
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• 제25권3호
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• pp.157-164
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• 2008

While developing physical prototype from CAD model, rapid prototyping mainly focuses on two key points reducing time and material consumption. So, we have to change from a traditional solid model to building a hollowed prototype. In this paper, a new method is presented to hollow out solid objects with uniform wall thickness to increase RP efficiency. To achieve uniform wall thickness, it is necessary to generate internal contour by slicing the offset model of an STL model. Due to many difficulties in this method, this paper proposes a new algorithm that computes internal contours computing offset model which is generated from external contour using wall thickness. Proposed method can easily compute the internal contour by slicing the offset surface defined by the sum of circle swept volumes of external contours without actual offset and the circle wept volumes. Internal contour existences are confirmed by using the external point. Presented algorithm uses the 2D geometric algorithm allowing RP implementation more efficient. Various examples have been tested with implementation of the algorithm, and some examples are presented for illustration.

• 한국사회복지학
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• 제40권
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• pp.97-130
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• 2000

The purpose of this paper is a case study on welfare QC circle which is considered as one of the management techniques to improve service quality among recently changing welfare environment. Futhermore this paper is also to suggest a new introduction of the welfare QC circle in korean social welfare agency. To accomplish these purpose, this study theoretically examines activity process and techniques of welfare QC circle. In practice, three social workers and one supervisor working at 'D' community welfare center in pusan are participated during six months. As a result, we founded the specific problems that is aroused from youth volunteer group within by fish bone chart, and proposed the alternative choices by 5W1H check sheet, and also certified to decrease turnover ratio in youth volunteering by pareto chart. This study, however, has its limitation in selection only one case study on welfare QC circle of youth volunteering. Welfare QC circle could be much contributed as one of the management techniques to enhance the quality of social welfare service from the viewpoint of the customer, If it is well developed korean welfare QC model which is suitable to social welfare organization and service. Therefore, in order to introduce welfare QC circle in korean social welfare organizations, I would like to suggest to find out a useful text of welfare QC and organize some welfare QC study groups including other suggestions.

• 한국군사과학기술학회지
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• 제26권4호
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• pp.352-360
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• 2023

Recently, AI pilots using reinforcement learning are developing to a level that is more flexible than rule-based methods and can replace human pilots. In this paper, a curriculum was used to help head-on combat with reinforcement learning. It is not easy to learn head-on with a reinforcement learning method without a curriculum, but in this paper, through the two circle-based head-on air combat learning technique, ownship gradually increase the difficulty and become good at head-on combat. On the two-circle, the ATA angle between the ownship and target gradually increased and the AA angle gradually decreased while learning was conducted. By performing reinforcement learning with and w/o curriculum, it was engaged with the rule-based model. And as the win ratio of the curriculum based model increased to close to 100 %, it was confirmed that the performance was superior.

• Industrial Engineering and Management Systems
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• 제13권1호
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• pp.87-100
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• 2014

Risk management is recognized as a significant element in Information Security Management while the failure mode and effects analysis (FMEA) is widely used in risk analysis in manufacturing industry. This paper aims to present the development work of the Information Security FMEA Circle (InfoSec FMEA Circle) which is used to support the risk management framework by modifying traditional FMEA methodologies. In order to demonstrate the "appropriateness" of the InfoSec FMEA Circle for the purposes of assessing information security, a case study at Hong Kong Science and Technology Parks Corporation (HKSTP) is employed. The "InfoSec FMEA Circle" is found to be an effective risk assessment methodology that has a significant contribution to providing a stepwise risk management implementation model for information security management.

• 한국안광학회지
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• 제7권1호
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• pp.21-23
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• 2002

인위적 근시에서 측정된 시력을 이론적 계산과 비교하였다. 계산은 망막에 형성되는 착란원 뿐만 아니라 상의 높이도 포함시켰다. 착란원은 기하광학적 모델에서 계산하였으며, 망각상의 높이는 인위적 근시에서 측정된 굴절력과 시력과의 관계로 계산하였다. 이 결과를 착란원과 망막상 높이의 비로서 망막상비를 정의하여 시력크기에 대한 망막상비의 관계를 조사하였다.

• 한국지반신소재학회논문집
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• 제22권3호
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• pp.105-117
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• 2023

최근 글로벌 에너지 공급 위기로 인해 국제 에너지 시장에서 불확실성이 증가되고 있다. 이러한 시장 변화로 에너지 가격이 상승하고 있으며, 미개발된 에너지 자원이 풍부하게 저장된 극한지(북극권)까지 개발 대상 지역이 확대되고 있다. 북극권은 기존 에너지 플랜트 사업을 수행하던 지역과 차별되는 자연환경, 법, 제도, 문화, 이해관계자 등 특수한 건설 환경을 가지고 있기 때문에 사전에 개발지역에 대한 다양한 검토가 필요하다. 본 논문에서는 최근 비전통 에너지 자원개발이 활발히 이루어지고 있는 캐나다 앨버타(Alberta)주를 대상으로 건설 환경 관련 공간정보를 수집하고 구축하였다. 또한, 건설 환경 공간정보 데이터를 활용하여 자원개발을 위한 최적 입지 평가 모델을 개발하고, 기존 자원개발 지역과 비교·분석하여 신뢰도를 검증하였다.

• 인터넷정보학회논문지
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• 제7권1호
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• pp.1-16
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• 2006

사용자의 개인정보를 통합 관리하는 ID관리시스템에서 프라이버시 문제는 일반 사용자들에게 매우 주요한 관심사이다. 따라서 ID관리 환경에서 개인의 프라이버시가 보호되지 않는다면 ID관리시스템의 활용도는 낮아질 수밖에 없다. 본 논문에서는 단일 COT(Circle of Trust)안에서 프라이버시 정책을 이용하여 개인프라이버시를 보호하는 접근통제기반의 프라이버시 보안 모델을 제안한다. 또한 프라이버시 보안모델 구성요소와 특성들을 정형적으로 기술하고, 프라이버시 보안 아키텍처와 프라이버시 정책들을 위한 XML기반의 스키마를 보인다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 추계학술대회
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• pp.281-284
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• 2010

본 논문은 카메라를 통해 입력받은 컬러 영상에서 손동작을 인식하여 실제 컴퓨팅 환경에 적용하는 방법으로, 입력받은 영상을 YCbCr 색상모델을 기반으로 영상을 이진화하여 레이블링 한 후 각각의 레이블 영역 내에서 Voronoi Diagram을 활용한 최대 내접원(Maximum Inscribed Circle)을 탐색하여 손의 중심점을 찾는다. 이때 탐색된 최대 내접원과 인접한 타원 성분을 분석하여 손 영역을 추출할 수 있다. 본 연구에서 찾아진 최대 내접원과 타원 성분을 손동작 인식의 특징점으로 사용하여 원거리에서 프리젠테이션을 제어하는 시스템을 제안한다. 본 알고리즘은 다양한 환경에서 손을 인식할 때 문제가 되는 배경에서의 유사한 색상을 가진 물체를 효과적으로 제거할 수 있는 장점이 있다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.97-99
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• 2003

Lineament density maps can be used for the quantitative evaluation of relationship between lineaments and groundwater occurrence. There are several kinds of lineament density maps including lineament length density, lineament cross-points density, and lineament counts density maps. This paper reports the usefulness of the representative elementary area (REA) concept for lineament analysis. This concept refers to the area size of the unit circle to calculate the lineament density factors distributed within the circle: length, counts and cross-points counts. The circle is a unit circle that calculates the sum of the lineament length, lineament counts and the number of cross-points within it. The REA is needed to obtain the best representative lineament density map prior to the analysis of relation between lineaments and groundwater well yield or other groundwater characteristics. A basic lineament map for the Yongsangang-Seomjingang watershed of Korea, drawn from aerial black-and-white photographs of 1/20, 000 scale was used for demonstrating the concept. From this study, the conclusions were as follows: (1) the REA concept can be efficiently applied to the lineament density analysis and mapping, (2) for whole Yongsangang-Seomjingang watershed which has 6, 502 lineaments with an average lineament length of 3.3 km, the lower limits of each REA used for drawing the three density maps were about 1.77 $\textrm{km}^2$ (r=750 m) for lineament length density, 7.07 $\textrm{km}^2$ (r=1, 500 m) for lineament counts density, and 4.91 $\textrm{km}^2$ (r=1, 250 m) for lineament cross-points density, respectively, (3) the lineament densities are inversely proportional to the size of REA, and the REA can be calculated with this inversely linear regression model, (4) if the average lineament density values for the whole study area are known, the most accurate density maps can be drawn using the REAs obtained from each linear regression model, and (5) but critical attention should be paid to draw lineament counts density and lineament cross-points density maps because.